cvs2.gaslightmedia.com Git - WP-Plugins/glm-member-db-registrations.git/blob

   1 <?php
   2 namespace PayPal\Core;
   3 use PayPal\Core\PPLoggingManager;
   4 use PayPal\Exception\PPConfigurationException;
   5 use PayPal\Exception\PPConnectionException;
   6
   7 /**
   8  * A wrapper class based on the curl extension.
   9  * Requires the PHP curl module to be enabled.
  10  * See for full requirements the PHP manual: http://php.net/curl
  11  */
  12
  13
  14 class PPHttpConnection
  15 {
  16
  17         private $httpConfig;
  18
  19         /**
  20          * HTTP status codes for which a retry must be attempted
  21          */
  22         private static $retryCodes = array('401', '403', '404', );
  23
  24         private $logger;
  25
  26         public function __construct($httpConfig, $config)
  27         {
  28                 if( !function_exists("curl_init") ) {
  29                         throw new PPConfigurationException("Curl module is not available on this system");
  30                 }
  31                 $this->httpConfig = $httpConfig;
  32                 $this->logger = new PPLoggingManager(__CLASS__, $config);
  33         }
  34
  35         private function getHttpHeaders() {
  36
  37                 $ret = array();
  38                 foreach($this->httpConfig->getHeaders() as $k=>$v) {
  39                         $ret[] = "$k: $v";
  40                 }
  41                 return $ret;
  42         }
  43
  44         /**
  45          * Executes an HTTP request
  46          *
  47          * @param string $data query string OR POST content as a string
  48          * @throws PPConnectionException
  49          */
  50         public function execute($data) {
  51                 $this->logger->fine("Connecting to " . $this->httpConfig->getUrl());
  52                 $this->logger->fine("Payload " . $data);
  53
  54                 $ch = curl_init($this->httpConfig->getUrl());
  55                 curl_setopt_array($ch, $this->httpConfig->getCurlOptions());
  56                 curl_setopt($ch, CURLOPT_URL, $this->httpConfig->getUrl());
  57                 curl_setopt($ch, CURLOPT_HEADER, false);
  58                 curl_setopt($ch, CURLOPT_HTTPHEADER, $this->getHttpHeaders());
  59
  60                 switch($this->httpConfig->getMethod()) {
  61                         case 'POST':
  62                                 curl_setopt($ch, CURLOPT_POST, true);
  63                                 curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
  64                                 break;
  65                 }
  66                 if($this->httpConfig->getMethod() != NULL) {
  67                         curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $this->httpConfig->getMethod());
  68                 }
  69                 foreach($this->getHttpHeaders() as $header) {
  70                         //TODO: Strip out credentials and other secure info when logging.
  71                         $this->logger->info("Adding header $header");
  72                 }
  73                 $result = curl_exec($ch);
  74                 if ((curl_errno($ch) == 60) && ($this->httpConfig->getMethod() != "DELETE")) {
  75                         $this->logger->info("Invalid or no certificate authority found - Retrying using bundled CA certs file");
  76                         curl_setopt($ch, CURLOPT_CAINFO,
  77                         dirname(__FILE__) . '/cacert.pem');
  78                         $result = curl_exec($ch);
  79                 }
  80                 $httpStatus = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  81                 $retries = 0;
  82                 if(in_array($httpStatus, self::$retryCodes) && $this->httpConfig->getHttpRetryCount() != null) {
  83                         $this->logger->info("Got $httpStatus response from server. Retrying");
  84
  85                         do      {
  86                                 $result = curl_exec($ch);
  87                                 $httpStatus = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  88                         } while (in_array($httpStatus, self::$retryCodes) && (++$retries < $this->httpConfig->getHttpRetryCount()) );
  89                 }
  90                 if ( curl_errno($ch) ) {
  91                         $ex = new PPConnectionException($this->httpConfig->getUrl(), curl_error($ch), curl_errno($ch));
  92                         curl_close($ch);
  93                         throw $ex;
  94                 }
  95
  96                 curl_close($ch);
  97
  98                 if(in_array($httpStatus, self::$retryCodes)) {
  99                         $ex = new PPConnectionException($this->httpConfig->getUrl() ,
 100                                         "Got Http response code $httpStatus when accessing {$this->httpConfig->getUrl()}. Retried $retries times.");
 101                         $ex->setData($result);
 102                         throw $ex;
 103                 } else if($httpStatus < 200 || $httpStatus >=300) {
 104                         $ex = new PPConnectionException($this->httpConfig->getUrl() ,
 105                                         "Got Http response code $httpStatus when accessing {$this->httpConfig->getUrl()}.");
 106                         $ex->setData($result);
 107                         throw $ex;
 108                 }
 109                 return $result;
 110         }
 111
 112 }